CN102041751B - High-temperature edible oil filter paper and manufacturing method thereof - Google Patents
High-temperature edible oil filter paper and manufacturing method thereof Download PDFInfo
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Abstract
The invention relates to a high-temperature edible oil filter paper and a manufacturing method thereof, belonging to the technical field of paper making. The manufacturing method comprises the following steps: adding a fibrous adhesive to enhance chemical fibers acting as main raw materials, pulping to defiber the chemical fibers and the fibrous adhesive, adding a certain amount of dispersant, molding with an inclined sieve or a lateral flow type cylinder sieve, applying a liquid adhesive to the surface for enhancement, drying, and cutting to obtain the filter paper capable of being used continuously. The manufacturing method can also comprise the following steps: adding a certain number of plant fibers to the chemical fiber materials, and drying without previously applying a liquid adhesive to the surface for enhancement, thus obtaining the filter paper capable of being used intermittently. Compared with the prior art, the high-temperature edible oil filter paper manufactured by the invention can be continuously or intermittently used, has favorable dry/wet strength, can resist high oil temperature of 180-200 DEG C and has the advantages of high paper uniformity and the like, thereby having fine application prospects.
Description
Technical field
The invention belongs to pulp technology for making paper, be specifically related to a kind of oil temperature, paper uniform high temperature edible oil filter paper and manufacturing approach thereof with good dried wet strength, ability 180-200 ℃.
Background technology
Along with rapid economy development, living standards of the people improve day by day, and the processing of food no longer is confined to family cooking, and the commercial running of food is produced tide and have swept the globe.In food-processing industry, fast food and the fastest with the growth rate of fast-food type fried food is the Chinese style wheaten food fast food of representative with the western fast food headed by McDonald, the KFC with Chef Kang, unification particularly.These fast foods use edible oil in a large number, and are to reuse, and in frying course, certainly lead to food and fall slag, so edible oil must be handled by sedimentation and filtration in use for some time.And food debris is through reactions such as the fried meeting generation of high temperature oxidation, hydrolysis, polymerization repeatedly in the oil, and acid value, the peroxide value of the edible frying oil of order constantly increase, and cause the bad change of grease.So the food of processing also can work the mischief to the healthy of eater, and the acidity that long-term in addition high temperature causes macromolecular compound to decompose and makes grease raises, and the shelf-life of having limited fried food, therefore must adopt high temperature edible oil filter paper to filter.
Summary of the invention
To the problems referred to above that exist in the prior art, the object of the present invention is to provide a kind of oil temperature, paper uniform high temperature edible oil filter paper and manufacturing approach thereof with good dried wet strength, ability 180-200 ℃.
Described a kind of high temperature edible oil filter paper; It is characterized in that it is a body material with the chemical fibre of 10-95 part parts by weight; Under the effect of the dispersant of the fibrous binding agent of 1-20 part parts by weight and 0.1-5 part parts by weight; In oblique net paper machine or the moulding of lateral flow type cylinder mould machine, and through dry, obtain filter paper after batching, cutting.
Described a kind of high temperature edible oil filter paper is characterized in that described chemical fibre is one or more mixtures in polyvinyl alcohol fibre, viscose, polyster fibre, the tencel fiber, and its fibre fineness is 1.1-5.0dtex, and fibre length is 3-7mm.
Described a kind of high temperature edible oil filter paper is characterized in that described raw material also comprises the string of 0-80 part parts by weight, and described string is one or more mixtures in wood pulp fibre, bast fiber, the Chinese alpine rush slurry.
Described a kind of high temperature edible oil filter paper is characterized in that described fibrous binding agent is one or more mixtures that comprise in water-solubility PVA fiber, vinyon fibre, the low-melting point polyester.
Described a kind of high temperature edible oil filter paper is characterized in that described dispersant comprises PAMA, elm water or polyoxyethylene.
Described a kind of high temperature edible oil filter paper; It is characterized in that can add 0-10 part parts by weight liquid adhesive before dry carries out the top sizing processing; Described liquid adhesive is one or more mixtures in sodium carboxymethylcellulose, surface sizing starch, the polyvinyl alcohol, and the working concentration of this binding agent is 1%-10%.
Described a kind of high temperature edible oil filter paper is characterized in that its preparation technology may further comprise the steps:
1) chemical fibre of 10-95 part parts by weight is discongested into single fiber with the fibrous binding agent of 1-20 part parts by weight with beater, the dispersant and a certain amount of water that add 0.1-5 part parts by weight again are mixed with the slurry that concentration is 0.2%-1.5%;
2) with the slurry that obtains in the step 1) in oblique net paper machine or the moulding of lateral flow type cylinder mould machine;
3) with step 2) in type filter paper through dry, obtain filter paper after batching, cutting.
Described a kind of high temperature edible oil filter paper is characterized in that in the step 1) can adding before the making beating that the string of 0-80 part parts by weight, described string are one or more mixtures during wood pulp fibre, bast fiber, Chinese alpine rush are starched.
Described a kind of high temperature edible oil filter paper; It is characterized in that can adding before the drying in the step 3) 0-10 part parts by weight liquid adhesive and carry out the top sizing processing, described liquid adhesive is one or more mixtures in sodium carboxymethylcellulose, surface sizing starch, the polyvinyl alcohol.
Described a kind of high temperature edible oil filter paper is characterized in that can adding before the drying in the step 3) 3-6 part parts by weight liquid adhesive and carries out the top sizing processing, and the working concentration of described liquid adhesive is 1%-10%.
The technical scheme that the present invention adopts is to be body material with the chemical fibre; The fibrous binding agent of interior interpolation strengthens; Through making beating chemical fibre, fibrous binding agent are discongested, and add certain dispersant, through tiltedly net or lateral flow type cylinder forming; The reusable liquid binding agent carries out obtaining after top sizing strengthens, dries, cuts the filter paper that can use continuously, its quantitative 25.5 ± 2.5g/m
2, thickness 0.080 ± 005mm, tensile strength>=0.80kN/m, cross direction tensile strength>=0.20kN/m, wet machine direction tensile strength>=0.20kN/m, air permeability>=1000L/m
2S; The present invention also can add a certain amount of string in the raw material chemical fibre, needn't carry out top sizing like this before the drying and strengthen, and obtains the intermittently used filter paper, the quantitative 215 ± 15g/m of described intermittently used high temperature edible oil filter paper
2, thickness 0.50 ± 0.05mm, machine direction tensile strength>=2.8kN/m, filtration time≤40s.Compared with prior art, the high temperature edible oil filter paper that the present invention obtains satisfies following performance: can be continuously or intermittently use, and it is even etc. to have high oil temperature, a paper of good dried wet strength, ability 180-200 ℃, and application prospect is good.
The specific embodiment
Below through specific embodiment the present invention is described, but protection scope of the present invention is not limited in this:
Embodiment 1 is that 1.1dtex, fibre length are that the tencel fiber of 7mm is discongested into single fiber with 10 parts water-solubility PVA fiber with beater with 90 parts of fibre finenesses; After adding 0.1 part PAMA (PAM) dispersant; Adding water, to be mixed with concentration be 0.2% slurry; Moulding on oblique net or lateral flow type cylinder; The l Water Paper page or leaf of moulding carries out top sizing with 6 parts of polyvinyl alcohol and sodium carboxymethylcellulose (CMC) binding agent by the concentration of 1:1 preparation 3%, through super-dry, batch, divide and cut into product.Become the key technical indexes of paper to be: quantitative 23.3g/m
2, thickness 0.082 mm, machine direction tensile strength 0.88kN/m, cross direction tensile strength 0.47kN/m, wet machine direction tensile strength 0.21kN/m, air permeability 1825L/m
2S.(the described umber of present embodiment refers to parts by weight, and following examples are identical).
The described chemical fibre of present embodiment selects for use one or more mixtures in polyvinyl alcohol fibre, viscose, polyster fibre, the tencel fiber to replace tencel fiber; Described fibrous binding agent replaces the PVA fiber with one or more mixtures in water-solubility PVA fiber, vinyon fibre, the low-melting point polyester; Described dispersant replaces PAMA with elm water or polyoxyethylene; Described liquid adhesive replaces polyvinyl alcohol and sodium carboxymethylcellulose mixture with one or more mixtures in sodium carboxymethylcellulose, surface sizing starch, the polyvinyl alcohol, also can obtain same effect.
Embodiment 2 is that 5.0dtex, fibre length are the viscose of 3mm with 40 parts of fibre finenesses; 45 parts of fibre finenesses are that 5.0dtex, fibre length are after the low melting point polyester fiber of polyvinyl alcohol fibre and 15 parts of 3mm mixes; Discongest into single fiber with hydrabrusher; After adding 5.0 parts polyoxyethylene (PEO) dispersant, adding water, to be mixed with concentration be 0.3% slurry, moulding on tiltedly net or lateral flow type cylinder; The l Water Paper page or leaf of moulding carries out top sizing with 10 part 2% surface sizing starch, through super-dry, batch, divide and cut into product.Become the key technical indexes of paper to be: quantitative 23.2g/m
2, thickness 0.080mm, machine direction tensile strength 1.53kN/m, cross direction tensile strength 0.56kN/m, wet machine direction tensile strength 0.36kN/m, air permeability 1284L/m
2S.
Embodiment 3 is that 2.5dtex, fibre length are the viscose of 5mm with 50 parts of fibre finenesses; 45 parts of fibre finenesses are that 4dtex, fibre length are after the low melting point polyester fiber of tencel fiber and 5 parts of 5mm mixes; Discongest into single fiber with beater; After adding 1.5 parts polyoxyethylene (PEO) dispersant, adding water, to be mixed with concentration be 0.2% slurry, moulding on tiltedly net or lateral flow type cylinder; The l Water Paper page or leaf of moulding carries out top sizing with 3 part 4% polyvinyl alcohol, through super-dry, batch, divide and cut into product.Become the key technical indexes of paper to be: quantitative 24.4g/m
2, thickness 0.084mm, machine direction tensile strength 1.13kN/m, cross direction tensile strength 0.44kN/m, wet machine direction tensile strength 0.26kN/m, air permeability 1734L/m
2S.
Embodiment 4 is that 2.5dtex, fibre length are the viscose of 5mm with 20 parts of fibre finenesses; 20 parts of fibre finenesses are that 4dtex, fibre length are that the tencel fiber of 5mm, 30 parts of fibre finenesses are that 2.5dtex, fibre length are after the vinyon fibre of polyster fibre and 20 parts of 5mm mixes; Discongest into single fiber with beater; After adding 5 parts elm water dispersant, adding water, to be mixed with concentration be 1.2% slurry, moulding on tiltedly net or lateral flow type cylinder; The l Water Paper page or leaf of moulding carries out top sizing with 1 part 10% polyvinyl alcohol, through super-dry, batch, divide and cut into product.Become the key technical indexes of paper to be: quantitative 28g/m
2, thickness 0.08mm, machine direction tensile strength 1.03kN/m, cross direction tensile strength 0.34kN/m, wet machine direction tensile strength 0.28kN/m, air permeability 1534L/m
2S.
Embodiment 5 is that 3.0dtex, fibre length are the viscose of 4mm with 40 parts of fibre finenesses; 50 parts wood pulp fibre is discongested into single fiber with 10 parts of low melting point polyester fibers with beater; After adding 5 parts PAMA (PAM) dispersant; Adding water, to be mixed with concentration be 1.2% slurry, and moulding on the lateral flow type cylinder is through super-dry, batch, divide and cut into product.Become the key technical indexes of paper to be: quantitative 202.4g/m
2, thickness 0.48mm, machine direction tensile strength 3.66kN/m, filtration time 27 s.
Embodiment 6 is that 1. 5dtex, fibre length are that the polyvinyl alcohol fibre of 6mm is discongested into single fiber with 10 parts of water-soluble fibres with beater with 20 portions of Chinese alpine rushs slurry with 70 parts of fibre finenesses; After adding 10 parts polyoxyethylene (PEO) dispersant; Adding water, to be mixed with concentration be 1.0% slurry; Moulding on the lateral flow type cylinder is through super-dry, batch, divide and cut into product.Become the key technical indexes of paper to be: quantitative 204.5g/m
2, thickness 0.49mm, tensile strength 4.07kN/m, filtration time 36s.
Embodiment 7 is that 2.0dtex, fibre length are the polyvinyl alcohol fibre of 5mm with 45 parts of fibre finenesses; 45 parts wood pulp fibre is discongested into single fiber with 10 parts of low melting point polyester fibers with hydrabrusher; After adding 1 part PAMA (PAM) dispersant; Adding water, to be mixed with concentration be 1.5% slurry, and moulding on the lateral flow type cylinder is through super-dry, batch, divide and cut into product.Become the key technical indexes of paper to be: quantitative 200g/m
2, thickness 0.42mm, machine direction tensile strength 4.67kN/m, filtration time 23 s.
Embodiment 8 is that 2.0dtex, fibre length are the polyvinyl alcohol fibre of 5mm with 10 parts of fibre finenesses; 80 parts bast fiber is discongested into single fiber with 10 parts of water-solubility PVA fibers with hydrabrusher; After adding 0.1 part PAMA (PAM) dispersant; Adding water, to be mixed with concentration be 1.5% slurry, and moulding on the lateral flow type cylinder is through super-dry, batch, divide and cut into product.Become the key technical indexes of paper to be: quantitative 230g/m
2, thickness 0.505mm, machine direction tensile strength 4.67kN/m, filtration time 40 s.
Claims (7)
1. high temperature edible oil filter paper; It is characterized in that it is a body material with the chemical fibre of 10-95 part parts by weight; Under the effect of the dispersant of the fibrous binding agent of 1-20 part parts by weight and 0.1-5 part parts by weight; In oblique net paper machine or the moulding of lateral flow type cylinder mould machine, and through dry, obtain filter paper after batching, cutting, described chemical fibre is one or more mixtures in polyvinyl alcohol fibre, viscose, polyster fibre, the tencel fiber; Its fibre fineness is 1.1-5.0dtex; Fibre length is 3-7mm, and described fibrous binding agent is one or more mixtures that comprise in water-solubility PVA fiber, the vinyon fibre, and described dispersant comprises PAMA, elm water or polyoxyethylene.
2. a kind of high temperature edible oil filter paper according to claim 1; It is characterized in that described raw material also comprises the string of 0-80 part parts by weight, described string is one or more mixtures in wood pulp fibre, bast fiber, the Chinese alpine rush slurry.
3. a kind of high temperature edible oil filter paper according to claim 1; It is characterized in that can add 0-10 part parts by weight liquid adhesive before dry carries out the top sizing processing; Described liquid adhesive is one or more mixtures in sodium carboxymethylcellulose, surface sizing starch, the polyvinyl alcohol, and the working concentration of this binding agent is 1%-10%.
4. a kind of high temperature edible oil filter paper according to claim 1 is characterized in that its preparation technology may further comprise the steps:
1) chemical fibre of 10-95 part parts by weight is discongested into single fiber with the fibrous binding agent of 1-20 part parts by weight with beater, the dispersant and a certain amount of water that add 0.1-5 part parts by weight again are mixed with the slurry that concentration is 0.2%-1.5%;
2) with the slurry that obtains in the step 1) in oblique net paper machine or the moulding of lateral flow type cylinder mould machine;
3) with step 2) in type filter paper through dry, obtain filter paper after batching, cutting.
5. a kind of high temperature edible oil filter paper according to claim 4; It is characterized in that can adding before the making beating in the step 1) string of 0-80 part parts by weight, described string is one or more mixtures in wood pulp fibre, bast fiber, the Chinese alpine rush slurry.
6. a kind of high temperature edible oil filter paper according to claim 4; It is characterized in that can adding before the drying in the step 3) 0-10 part parts by weight liquid adhesive and carry out the top sizing processing, described liquid adhesive is one or more mixtures in sodium carboxymethylcellulose, surface sizing starch, the polyvinyl alcohol.
7. a kind of high temperature edible oil filter paper according to claim 4 is characterized in that can adding before the drying in the step 3) 3-6 part parts by weight liquid adhesive and carries out the top sizing processing, and the working concentration of described liquid adhesive amount is 1%-10%.
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| CN111926620A (en) * | 2020-08-05 | 2020-11-13 | 中轻特种纤维材料有限公司 | Edible oil filter paper and preparation method thereof |
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